Home / 437,547.40-656,321.10-331,259.20

Finding the Fourth Proportional to 437,547.40, 656,321.10 and 331,259.20

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Solution

The fourth proportional to 437,547.40, 656,321.10 and 331,259.20 is: 496,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,547.40 : 656,321.10 = 331,259.20 : x
  2. Step 2: Convert to fraction form
    437,547.40/656,321.10 = 331,259.20/x
  3. Step 3: Cross multiply
    437,547.40x = 656,321.10 × 331,259.20
  4. Step 4: Simplify right side
    437,547.40x = 217,412,402,529.12
  5. Step 5: Solve for x
    x = 217,412,402,529.12/437,547.40
  6. Step 6: Final answer
    x = 496,888.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.